African indigenous vegetables (AIVs) have been part of the food systems in sub-Saharan Africa for generations. The region is a natural habitat for more than 45,000 species of plants, of which about 1,000 can be eaten as green leafy or fruit vegetables that happen to be the mainstay of traditional diets. During the colonial era, adventurers and slavers sailing in Africa introduced exotic plants such as maize, cassava and beans and, later, commercial crops such as sugarcane, cocoa, coffee and cotton, which began contributing more to life. Farmers integrated these crops into their age-old livelihood strategies at the expense of traditional subsistence crops. AIVs were almost entirely neglected and considered 'poor people's' plants. To reverse the trend, FARM-Africa and its partners reintroduced AIVs which are now forming part of families' diets as well as becoming a source of income for smallholder farmers in Arumeru, Tanzania and Kiambu, Kenya. AIVs are robust and productive, and thus well suited to feeding the hungriest and most vulnerable sections of society.

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Poverty is widespread in Rakai district, which had been badly affected by HIV/AIDS resulting in many orphan-headed households. A poultry improvement programme based on local practices and cross-breeding indigenous chickens was desired by the communities to improve their income. Partnerships for implementation were strategically chosen. Scaling out was realized through participatory approaches, use of trainers from the communities, establishment of the Rakai Chicken Breeders Association, commercially and locally managed Integrated Feed Centres, market orientation and independent financial services, collaborating with and influencing local institutions. The average increased income as a result of improved poultry keeping was US$1050 per household per annum. The project contributed to increased gender awareness, leadership and entrepreneurial skills, increased status of trainers and investments in other businesses.

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Home garden interventions combining training in agriculture and nutrition have the potential to increase vegetable production and consumption in lower-income countries, but there remains a need for better evidence for impact. This study contributes to filling this gap by evaluating the impact and distributional effects of a home garden intervention in Cambodia. We used a cluster randomized controlled trial with before and after data for a sample of 500 rural households with children under five and women 16–49 years old. Impact was estimated using analysis of covariance (ANCOVA) and conditional quantile regressions with non-parametric bounds. The results show that the intervention significantly increased the adoption of nearly all promoted gardening methods. More households (+ 35%; p < 0.01) produced vegetables, and the production period was extended by five months on average. One-month recall data show an increase in vegetables harvested (+ 25 kg; p < 0.01) and consumed (+ 10 kg; p < 0.01) from the garden. Quantile regressions confirm these findings and show that nearly all households benefitted, but households that were already doing better at baseline tended to benefit more. Seven-day recall data show an increase in the quantity of vegetables consumed (+ 61 g/day/capita; p < 0.01) and an increased quantity of vitamin A, folate, iron, and zinc contained in these vegetables. Women contributed more to the garden work than men and their time spent in the garden increased by 29 min/day on average. These results add further evidence that integrated home garden interventions can contribute to nutrition outcomes and that almost all participants can benefit.